Finding the Fourth Proportional to 1,441.78, 1,988.85 and 975.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.78 : 1,988.85 = 975.22 : x
2. Step 2: Convert to fraction form
   1,441.78/1,988.85 = 975.22/x
3. Step 3: Cross multiply
   1,441.78x = 1,988.85 × 975.22
4. Step 4: Simplify right side
   1,441.78x = 1,939,566.30
5. Step 5: Solve for x
   x = 1,939,566.30/1,441.78
6. Step 6: Final answer
   x = 1,345.26